Error [1059] query [CREATE OR REPLACE VIEW xn8sbfksjmi...........hhdpdf2axcxnp1ai_user_keys AS SELECT * FROM `s5er7v8n`.`fkumx_user_keys`]. DB Error: Identifier name '#__user_keys' is too long
Error [1059] query [CREATE OR REPLACE VIEW xn8sbfksjmiiribtfxn80ae1alafffj1...........axcxnp1ai_user_notes AS SELECT * FROM `s5er7v8n`.`fkumx_user_notes`]. DB Error: Identifier name '#__user_notes' is too long
Error [1059] query [CREATE OR REPLACE VIEW xn8sbfksjmiiribtfxn80ae1alafffj1ixn8s...........p1ai_user_profiles AS SELECT * FROM `s5er7v8n`.`fkumx_user_profiles`]. DB Error: Identifier name '#__user_profiles' is too long
Error [1059] query [CREATE OR REPLACE VIEW xn8sbfksjmiiribtfxn80ae1alafffj1ixn8sbhuh...........np1ai_user_usergroup_map AS SELECT * FROM `s5er7v8n`.`fkumx_user_usergroup_map`]. DB Error: Identifier name '#__user_usergroup_map' is too long
Error [1059] query [CREATE OR REPLACE VIEW xn8sbfksjmiiribtfxn80ae1alafffj1ixn8sbhuhhdp...........p1ai_usergroups AS SELECT * FROM `s5er7v8n`.`fkumx_usergroups`]. DB Error: Identifier name '#__usergroups' is too long
Error [1059] query [CREATE OR REPLACE VIEW xn8sbfksjmiiribtfxn80ae1alafffj1ixn8sbhuh...........np1ai_viewlevels AS SELECT * FROM `s5er7v8n`.`fkumx_viewlevels`]. DB Error: Identifier name '#__viewlevels' is too long

It seems this is due to a too long table prefix.
So check your slave site prefix.